application.js

    fetch: function (options) {
      this.trigger('fetching');
      var new_options = _.clone(options) || {};
      var that = this;
      new_options.success = function (arguments) {
        if (options && typeof options.success === "function") {
          options.success.call(arguments);
        }
        that.trigger('done');
      }
      Backbone.Model.prototype.fetch.call(this, new_options);
    },